CN218603680U

CN218603680U - Three-in-one LED dimming driving power supply

Info

Publication number: CN218603680U
Application number: CN202222636082.1U
Authority: CN
Inventors: 陈道波
Original assignee: Anway Electric Huizhou Co ltd
Current assignee: Anway Electric Huizhou Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-03-10
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a trinity LED drive power supply that adjusts luminance, including detection module, phase-cut module and switch module, detection module respectively with phase-cut module and switch module electric connection, detection module includes the singlechip, the one end of singlechip is connected with the partial pressure unit, phase-cut module includes the phase-cut light modulator, switch module includes switch and button, the one end of switch and the one end of phase-cut light modulator all are connected with the voltage source, the one end of voltage source is connected with the one end of singlechip; the utility model discloses mainly through detection module, phase-cut module and switch module's cooperation, make the singlechip detect the pin and pass through the partial pressure unit and detect the input voltage waveform to what judge that the AC input meets is phase-cut dimmer or switch, then calls different procedures, through the electric current of duty ratio control output load of adjustment PWM signal, reaches the dimming effect, has improved the variety of the mode of adjusting luminance to a certain extent.

Description

Three-in-one LED dimming driving power supply

Technical Field

The utility model relates to a drive power supply technical field specifically is trinity LED drive power supply that adjusts luminance.

Background

The LED dimming driving power supply utilizes the characteristics that human eyes are insensitive to high-frequency flicker and sensitive to brightness to accumulate, controls the on and off of the LED light source through the PWM signal, and adjusts the duty ratio of the PWM signal to adjust the lighting time of the LED light source.

Patent documents: the publication number is CN108990215A, the patent name is adjustable LED driving power supply and LED dimming method, the LED driving power supply comprises a main power supply module, a Bluetooth control module and a dimming module, a first dimming instruction sent by a control terminal is received through the Bluetooth module, the Bluetooth control module controls the dimming module to adjust the output power output to the LED load according to the first dimming instruction so as to adjust the display parameter of the LED load, thereby the adjustable LED driving power supply can be remotely controlled through the control terminal,

the advantage of above-mentioned patent is for can realizing carrying out nimble regulation to the display parameter of LED load, has improved the convenience of adjusting the display parameter of LED load, treats the optimization place and be the mode of adjusting luminance single, can not judge according to input voltage waveform that the input connects phase cut dimmer or ordinary switch, transfers different programs, and the electric current of output load is controlled to the duty cycle of rethread speed governing PWM signal.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a trinity LED drive power supply that adjusts luminance through detection module, phase-cut module and switch module's cooperation, makes the singlechip detect the pin and passes through the partial pressure unit and detect the input voltage waveform to judge that what the AC input connects is phase-cut dimmer or switch, then call different procedures, through the electric current of adjusting the duty cycle control output load of PWM signal, reach the effect of adjusting luminance, with the problem of proposing in the solution background art.

In order to achieve the above object, the utility model provides a following technical scheme: trinity LED drive power supply that adjusts luminance, including detection module, phase cutting module and switch module, detection module respectively with phase cutting module and switch module electric connection, detection module includes the singlechip, the one end of singlechip is connected with the partial pressure unit, phase cutting module is including phase cutting light modulator, switch module includes switch and button, the one end of switch and the one end of phase cutting light modulator all are connected with the voltage source, the one end of voltage source is connected with the one end of singlechip, the one end of voltage source is connected with the one end of button, the other end of button is connected with resistance R3, resistance R3's one end is connected with the singlechip.

Preferably, the voltage dividing unit includes a resistor R1 and a resistor R2, one end of the resistor R1 is connected to one end of the resistor R2, and a capacitor C1 is connected between the other end of the resistor R1 and the other end of the resistor R2.

Preferably, the two ends of the capacitor C1 are connected with a diode D2 and a diode D4 respectively, one ends of the diode D2 and the diode D4 are connected, one end of the diode D2 is connected with the diode D1, one end of the diode D4 is connected with the diode D3, and one ends of the diode D3 and the diode D1 are connected.

Preferably, the singlechip includes U1 foot, PUSH foot and PWM foot, the one end and the LED of PWM foot are connected, PUSH foot is connected with the other end of resistance R3.

Preferably, the other end of the switch and the other end of the phase-cut dimmer are both connected with the junction of the diode D2 and the diode D4, and one end of the voltage source is connected with the junction of the diode D1 and the diode D3.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses mainly through detection module, phase cutting module and switch module's cooperation, make the singlechip detect the pin and pass through the partial pressure unit and detect the input voltage waveform to what judge that the AC input meets is phase cutting light modulator or switch, then transfer different procedures, through the electric current of the duty cycle control output load of adjustment PWM signal, reach the effect of adjusting luminance, make this drive power supply can collect and detect, phase cutting and switch are as an organic whole, improved the variety of the mode of adjusting luminance to a certain extent.

Drawings

FIG. 1 is a circuit diagram of the phase-cutting procedure of the present invention;

fig. 2 is a circuit diagram of the switch program of the present invention;

fig. 3 is a flowchart of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: three-in-one LED dimming driving power supply comprises a detection module, a phase-cutting module and a switch module, wherein the detection module is respectively electrically connected with the phase-cutting module and the switch module, the detection module comprises a single chip microcomputer, one end of the single chip microcomputer is connected with a voltage dividing unit, the phase-cutting module comprises a phase-cutting dimmer, the switch module comprises a switch and a key, one end of the switch and one end of the phase-cutting dimmer are both connected with a voltage source, if V1 is the voltage source in figures 1 and 2, one end of the voltage source is connected with one end of the single chip microcomputer, one end of the voltage source is connected with one end of the key, the other end of the key is connected with a resistor R3, and one end of the resistor R3 is connected with the single chip microcomputer;

the voltage division unit comprises a resistor R1 and a resistor R2, one end of the resistor R1 is connected with one end of the resistor R2, and a capacitor C1 is connected between the other end of the resistor R1 and the other end of the resistor R2.

The both ends of electric capacity C1 are connected with diode D2 and diode D4 respectively, diode D2 and diode D4's one end are connected, diode D2's one end is connected with diode D1, diode D4's one end is connected with diode D3, diode D3 and diode D1's one end are connected.

The single chip microcomputer comprises a U1 pin, a PUSH pin and a PWM pin, one end of the PWM pin is connected with the LED, and the PUSH pin is connected with the other end of the resistor R3.

The other end of the switch and the other end of the phase-cut dimmer are connected with the junction of the diode D2 and the diode D4, and one end of the voltage source is connected with the junction of the diode D1 and the diode D3.

The singlechip detects the pin and detects the input voltage waveform through the partial pressure of R1 and R2 to judge that the AC input meets and be phase cut dimmer or ordinary switch, then transfer different procedures, control the electric current of output load through the duty cycle of adjustment PWM signal, reach the effect of adjusting luminance, make this drive power supply can collect detect, phase cut and switch as an organic whole, improved the variety of the mode of adjusting luminance to a certain extent.

As shown in fig. 3, the driving power supply is used in the following steps:

the initialization is completed, whether the phase-cut dimmer is accessed is judged by detecting the voltage on the pin through the single chip microcomputer, whether the voltage of the pin changes suddenly or not is detected, and the following two situations can occur:

A. if the phase-cut dimmer is switched on, the phase-cut dimming program is called to carry out dimming,

B. if no phase cut dimmer is connected, a switch dimming program is invoked.

In sum, the duty ratio of the PWM signal is adjusted according to the set dimming curve by detecting the phase signal at regular time, so as to adjust the current of the LED lamp, thereby achieving the dimming effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Trinity LED drive power supply that adjusts luminance, including detection module, phase-cut module and switch module, its characterized in that: the utility model discloses a light source, including detection module, switch module, voltage source, detection module and singlechip, detection module respectively with cut looks module and switch module electric connection, detection module includes the singlechip, the one end of singlechip is connected with the voltage division unit, it includes the light modulator of cutting looks to cut the module of cutting looks, switch module includes switch and button, the one end of switch and the one end of cutting the light modulator of cutting looks all are connected with the voltage source, the one end of voltage source is connected with the one end of singlechip, the one end of voltage source is connected with the one end of button, the other end of button is connected with resistance R3, resistance R3's one end is connected with the singlechip.

2. The three-in-one LED dimming driving power supply of claim 1, wherein: the voltage division unit comprises a resistor R1 and a resistor R2, one end of the resistor R1 is connected with one end of the resistor R2, and a capacitor C1 is connected between the other end of the resistor R1 and the other end of the resistor R2.

3. The three-in-one LED dimming driving power supply of claim 2, wherein: the both ends of electric capacity C1 are connected with diode D2 and diode D4 respectively, diode D2 and diode D4's one end are connected, diode D2's one end is connected with diode D1, diode D4's one end is connected with diode D3, diode D3 and diode D1's one end are connected.

4. The three-in-one LED dimming driving power supply according to claim 3, wherein: the single chip microcomputer comprises a U1 pin, a PUSH pin and a PWM pin, one end of the PWM pin is connected with the LED, and the PUSH pin is connected with the other end of the resistor R3.

5. The three-in-one LED dimming driving power supply of claim 4, wherein: the other end of the switch and the other end of the phase-cut dimmer are connected with the junction of the diode D2 and the diode D4, and one end of the voltage source is connected with the junction of the diode D1 and the diode D3.